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A few middle and lower leaves yellowing

papa canna

Well-Known Member
2 of my strains have lower and middle leaves yellowing and dying (mostly lower) I read on growweedeasy that its probably nitrogen deficiency. I grow in an inert soilless medium and feed maxibloom, rapidstart, and calmag with every watering. I am currently in week 3 of flower. Should I add a little veg nutrient into my flower mix for these strains?
 
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